4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PROTOCOL_H
21 #define _CTDB_PROTOCOL_H
23 #include <sys/socket.h>
25 /* default ctdb port number */
26 #define CTDB_PORT 4379
28 /* we must align packets to ensure ctdb works on all architectures (eg. sparc) */
29 #define CTDB_DS_ALIGNMENT 8
32 #define CTDB_NULL_FUNC 0xFF000001
33 #define CTDB_FETCH_FUNC 0xFF000002
34 #define CTDB_FETCH_WITH_HEADER_FUNC 0xFF000003
43 #define CTDB_IMMEDIATE_MIGRATION 0x00000001
44 #define CTDB_CALL_FLAG_VACUUM_MIGRATION 0x00000002
45 #define CTDB_WANT_READONLY 0x00000004
50 structure passed to a ctdb call backend function
52 struct ctdb_call_info
{
53 TDB_DATA key
; /* record key */
54 struct ctdb_ltdb_header
*header
;
55 TDB_DATA record_data
; /* current data in the record */
56 TDB_DATA
*new_data
; /* optionally updated record data */
57 TDB_DATA
*call_data
; /* optionally passed from caller */
58 TDB_DATA
*reply_data
; /* optionally returned by function */
59 uint32_t status
; /* optional reply status - defaults to zero */
62 #define CTDB_ERR_INVALID 1
63 #define CTDB_ERR_NOMEM 2
68 #define CTDB_FLAG_TORTURE (1<<1)
71 a message handler ID meaning "give me all messages"
73 #define CTDB_SRVID_ALL (~(uint64_t)0)
78 #define CTDB_SRVID_RECOVERY 0xF100000000000000LL
81 a message handler ID meaning that the cluster has been reconfigured
83 #define CTDB_SRVID_RECONFIGURE 0xF200000000000000LL
86 a message handler ID meaning that an IP address has been released
88 #define CTDB_SRVID_RELEASE_IP 0xF300000000000000LL
91 a message handler ID meaning that an IP address has been taken
93 #define CTDB_SRVID_TAKE_IP 0xF301000000000000LL
96 a message ID to set the node flags in the recovery daemon
98 #define CTDB_SRVID_SET_NODE_FLAGS 0xF400000000000000LL
101 a message ID to ask the recovery daemon to update the expected node
102 assignment for a public ip
104 #define CTDB_SRVID_RECD_UPDATE_IP 0xF500000000000000LL
107 a message to tell the recovery daemon to fetch a set of records
109 #define CTDB_SRVID_VACUUM_FETCH 0xF700000000000000LL
112 * a message to tell recovery daemon to detach a database
114 #define CTDB_SRVID_DETACH_DATABASE 0xF701000000000000LL
116 a message to tell the recovery daemon to write a talloc memdump
119 #define CTDB_SRVID_MEM_DUMP 0xF800000000000000LL
121 /* A message id used to ask the recover daemon to send logs
123 #define CTDB_SRVID_GETLOG 0xF801000000000000LL
125 /* A message id used to ask the recover daemon to send logs
127 #define CTDB_SRVID_CLEARLOG 0xF802000000000000LL
130 a message ID to get the recovery daemon to push the node flags out
132 #define CTDB_SRVID_PUSH_NODE_FLAGS 0xF900000000000000LL
135 a message ID to get the recovery daemon to reload the nodes file
137 #define CTDB_SRVID_RELOAD_NODES 0xFA00000000000000LL
140 a message ID to get the recovery daemon to perform a takeover run
142 #define CTDB_SRVID_TAKEOVER_RUN 0xFB00000000000000LL
144 /* request recovery daemon to rebalance ips for a node.
145 input is uint32_t for the node id.
147 #define CTDB_SRVID_REBALANCE_NODE 0xFB01000000000000LL
149 /* A message handler ID to stop takeover runs from occurring */
150 #define CTDB_SRVID_DISABLE_TAKEOVER_RUNS 0xFB03000000000000LL
152 /* A message handler ID to stop recoveries from occurring */
153 #define CTDB_SRVID_DISABLE_RECOVERIES 0xFB04000000000000LL
155 /* A message id to ask the recovery daemon to temporarily disable the
158 #define CTDB_SRVID_DISABLE_IP_CHECK 0xFC00000000000000LL
160 /* A dummy port used for sending back ipreallocate resposnes to the main
163 #define CTDB_SRVID_TAKEOVER_RUN_RESPONSE 0xFD00000000000000LL
165 /* A range of ports reserved for registering a PID (top 8 bits)
166 * All ports matching the 8 top bits are reserved for exclusive use by
167 * registering a SRVID that matches the process-id of the requesting process
169 #define CTDB_SRVID_PID_RANGE 0x0000000000000000LL
171 /* A range of ports reserved for samba (top 8 bits)
172 * All ports matching the 8 top bits are reserved for exclusive use by
175 #define CTDB_SRVID_SAMBA_NOTIFY 0xFE00000000000000LL
176 #define CTDB_SRVID_SAMBA_RANGE 0xFE00000000000000LL
178 /* A range of ports reserved for a CTDB NFS server (top 8 bits)
179 * All ports matching the 8 top bits are reserved for exclusive use by
182 #define CTDB_SRVID_NFSD_RANGE 0xEE00000000000000LL
184 /* A range of ports reserved for a CTDB ISCSI server (top 8 bits)
185 * All ports matching the 8 top bits are reserved for exclusive use by
188 #define CTDB_SRVID_ISCSID_RANGE 0xDE00000000000000LL
190 /* A range of ports reserved for testing (top 8 bits)
191 * All ports matching the 8 top bits are reserved for exclusive use by
194 #define CTDB_SRVID_TEST_RANGE 0xCE00000000000000LL
196 /* Range of ports reserved for traversals */
197 #define CTDB_SRVID_TRAVERSE_RANGE 0xBE00000000000000LL
199 /* used on the domain socket, send a pdu to the local daemon */
200 #define CTDB_CURRENT_NODE 0xF0000001
201 /* send a broadcast to all nodes in the cluster, active or not */
202 #define CTDB_BROADCAST_ALL 0xF0000002
203 /* send a broadcast to all nodes in the current vnn map */
204 #define CTDB_BROADCAST_VNNMAP 0xF0000003
205 /* send a broadcast to all connected nodes */
206 #define CTDB_BROADCAST_CONNECTED 0xF0000004
207 /* send a broadcast to selected connected nodes */
208 #define CTDB_MULTICAST 0xF0000005
210 /* the key used for transaction locking on persistent databases */
211 #define CTDB_TRANSACTION_LOCK_KEY "__transaction_lock__"
213 /* the key used to store persistent db sequence number */
214 #define CTDB_DB_SEQNUM_KEY "__db_sequence_number__"
216 #define MONITOR_SCRIPT_OK 0
217 #define MONITOR_SCRIPT_TIMEOUT 1
219 #define MAX_SCRIPT_NAME 31
220 #define MAX_SCRIPT_OUTPUT 511
222 char name
[MAX_SCRIPT_NAME
+1];
223 struct timeval start
;
224 struct timeval finished
;
226 char output
[MAX_SCRIPT_OUTPUT
+1];
229 struct ctdb_script_list_old
{
230 uint32_t num_scripts
;
231 struct ctdb_script scripts
[1];
234 /* different calls to event scripts. */
236 CTDB_EVENT_INIT
, /* CTDB starting up: no args */
237 CTDB_EVENT_SETUP
, /* CTDB starting up after transport is readdy: no args. */
238 CTDB_EVENT_STARTUP
, /* CTDB starting up after initial recovery: no args. */
239 CTDB_EVENT_START_RECOVERY
, /* CTDB recovery starting: no args. */
240 CTDB_EVENT_RECOVERED
, /* CTDB recovery finished: no args. */
241 CTDB_EVENT_TAKE_IP
, /* IP taken: interface, IP address, netmask bits. */
242 CTDB_EVENT_RELEASE_IP
, /* IP released: interface, IP address, netmask bits. */
243 CTDB_EVENT_STOPPED
, /* Deprecated, do not use. */
244 CTDB_EVENT_MONITOR
, /* Please check if service is healthy: no args. */
245 CTDB_EVENT_STATUS
, /* Deprecated, do not use. */
246 CTDB_EVENT_SHUTDOWN
, /* CTDB shutting down: no args. */
247 CTDB_EVENT_RELOAD
, /* Deprecated, do not use */
248 CTDB_EVENT_UPDATE_IP
, /* IP updating: old interface, new interface, IP address, netmask bits. */
249 CTDB_EVENT_IPREALLOCATED
, /* when a takeover_run() completes */
253 /* Mapping from enum to names. */
254 extern const char *ctdb_eventscript_call_names
[];
259 enum ctdb_operation
{
262 CTDB_REQ_DMASTER
= 2,
263 CTDB_REPLY_DMASTER
= 3,
264 CTDB_REPLY_ERROR
= 4,
265 CTDB_REQ_MESSAGE
= 5,
267 CTDB_REQ_CONTROL
= 7,
268 CTDB_REPLY_CONTROL
= 8,
269 CTDB_REQ_KEEPALIVE
= 9,
272 #define CTDB_MAGIC 0x43544442 /* CTDB */
273 #define CTDB_PROTOCOL 1
275 enum ctdb_controls
{CTDB_CONTROL_PROCESS_EXISTS
= 0,
276 CTDB_CONTROL_STATISTICS
= 1,
278 CTDB_CONTROL_PING
= 3,
279 CTDB_CONTROL_GETDBPATH
= 4,
280 CTDB_CONTROL_GETVNNMAP
= 5,
281 CTDB_CONTROL_SETVNNMAP
= 6,
282 CTDB_CONTROL_GET_DEBUG
= 7,
283 CTDB_CONTROL_SET_DEBUG
= 8,
284 CTDB_CONTROL_GET_DBMAP
= 9,
285 CTDB_CONTROL_GET_NODEMAPv4
= 10, /* obsolete */
286 CTDB_CONTROL_SET_DMASTER
= 11, /* obsolete */
288 CTDB_CONTROL_PULL_DB
= 13,
289 CTDB_CONTROL_PUSH_DB
= 14,
290 CTDB_CONTROL_GET_RECMODE
= 15,
291 CTDB_CONTROL_SET_RECMODE
= 16,
292 CTDB_CONTROL_STATISTICS_RESET
= 17,
293 CTDB_CONTROL_DB_ATTACH
= 18,
294 CTDB_CONTROL_SET_CALL
= 19, /* obsolete */
295 CTDB_CONTROL_TRAVERSE_START
= 20,
296 CTDB_CONTROL_TRAVERSE_ALL
= 21,
297 CTDB_CONTROL_TRAVERSE_DATA
= 22,
298 CTDB_CONTROL_REGISTER_SRVID
= 23,
299 CTDB_CONTROL_DEREGISTER_SRVID
= 24,
300 CTDB_CONTROL_GET_DBNAME
= 25,
301 CTDB_CONTROL_ENABLE_SEQNUM
= 26,
302 CTDB_CONTROL_UPDATE_SEQNUM
= 27,
304 CTDB_CONTROL_DUMP_MEMORY
= 29,
305 CTDB_CONTROL_GET_PID
= 30,
306 CTDB_CONTROL_GET_RECMASTER
= 31,
307 CTDB_CONTROL_SET_RECMASTER
= 32,
308 CTDB_CONTROL_FREEZE
= 33,
309 CTDB_CONTROL_THAW
= 34,
310 CTDB_CONTROL_GET_PNN
= 35,
311 CTDB_CONTROL_SHUTDOWN
= 36,
312 CTDB_CONTROL_GET_MONMODE
= 37,
317 CTDB_CONTROL_TAKEOVER_IPv4
= 42, /* obsolete */
318 CTDB_CONTROL_RELEASE_IPv4
= 43, /* obsolete */
319 CTDB_CONTROL_TCP_CLIENT
= 44,
320 CTDB_CONTROL_TCP_ADD
= 45,
321 CTDB_CONTROL_TCP_REMOVE
= 46,
322 CTDB_CONTROL_STARTUP
= 47,
323 CTDB_CONTROL_SET_TUNABLE
= 48,
324 CTDB_CONTROL_GET_TUNABLE
= 49,
325 CTDB_CONTROL_LIST_TUNABLES
= 50,
326 CTDB_CONTROL_GET_PUBLIC_IPSv4
= 51, /* obsolete */
327 CTDB_CONTROL_MODIFY_FLAGS
= 52,
328 CTDB_CONTROL_GET_ALL_TUNABLES
= 53,
329 CTDB_CONTROL_KILL_TCP
= 54,
330 CTDB_CONTROL_GET_TCP_TICKLE_LIST
= 55,
331 CTDB_CONTROL_SET_TCP_TICKLE_LIST
= 56,
332 CTDB_CONTROL_REGISTER_SERVER_ID
= 57,
333 CTDB_CONTROL_UNREGISTER_SERVER_ID
= 58,
334 CTDB_CONTROL_CHECK_SERVER_ID
= 59,
335 CTDB_CONTROL_GET_SERVER_ID_LIST
= 60,
336 CTDB_CONTROL_DB_ATTACH_PERSISTENT
= 61,
337 CTDB_CONTROL_PERSISTENT_STORE
= 62, /* obsolete */
338 CTDB_CONTROL_UPDATE_RECORD
= 63,
339 CTDB_CONTROL_SEND_GRATIOUS_ARP
= 64,
340 CTDB_CONTROL_TRANSACTION_START
= 65,
341 CTDB_CONTROL_TRANSACTION_COMMIT
= 66,
342 CTDB_CONTROL_WIPE_DATABASE
= 67,
344 CTDB_CONTROL_UPTIME
= 69,
345 CTDB_CONTROL_START_RECOVERY
= 70,
346 CTDB_CONTROL_END_RECOVERY
= 71,
347 CTDB_CONTROL_RELOAD_NODES_FILE
= 72,
349 CTDB_CONTROL_TRY_DELETE_RECORDS
= 74,
350 CTDB_CONTROL_ENABLE_MONITOR
= 75,
351 CTDB_CONTROL_DISABLE_MONITOR
= 76,
352 CTDB_CONTROL_ADD_PUBLIC_IP
= 77,
353 CTDB_CONTROL_DEL_PUBLIC_IP
= 78,
354 CTDB_CONTROL_RUN_EVENTSCRIPTS
= 79,
355 CTDB_CONTROL_GET_CAPABILITIES
= 80,
356 CTDB_CONTROL_START_PERSISTENT_UPDATE
= 81,
357 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE
= 82,
358 CTDB_CONTROL_TRANS2_COMMIT
= 83, /* obsolete */
359 CTDB_CONTROL_TRANS2_FINISHED
= 84, /* obsolete */
360 CTDB_CONTROL_TRANS2_ERROR
= 85, /* obsolete */
361 CTDB_CONTROL_TRANS2_COMMIT_RETRY
= 86, /* obsolete */
362 CTDB_CONTROL_RECD_PING
= 87,
363 CTDB_CONTROL_RELEASE_IP
= 88,
364 CTDB_CONTROL_TAKEOVER_IP
= 89,
365 CTDB_CONTROL_GET_PUBLIC_IPS
= 90,
366 CTDB_CONTROL_GET_NODEMAP
= 91,
367 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS
= 96,
368 CTDB_CONTROL_TRAVERSE_KILL
= 97,
369 CTDB_CONTROL_RECD_RECLOCK_LATENCY
= 98,
370 CTDB_CONTROL_GET_RECLOCK_FILE
= 99,
371 CTDB_CONTROL_SET_RECLOCK_FILE
= 100,
372 CTDB_CONTROL_STOP_NODE
= 101,
373 CTDB_CONTROL_CONTINUE_NODE
= 102,
374 CTDB_CONTROL_SET_NATGWSTATE
= 103,
375 CTDB_CONTROL_SET_LMASTERROLE
= 104,
376 CTDB_CONTROL_SET_RECMASTERROLE
= 105,
377 CTDB_CONTROL_ENABLE_SCRIPT
= 107,
378 CTDB_CONTROL_DISABLE_SCRIPT
= 108,
379 CTDB_CONTROL_SET_BAN_STATE
= 109,
380 CTDB_CONTROL_GET_BAN_STATE
= 110,
381 CTDB_CONTROL_SET_DB_PRIORITY
= 111,
382 CTDB_CONTROL_GET_DB_PRIORITY
= 112,
383 CTDB_CONTROL_TRANSACTION_CANCEL
= 113,
384 CTDB_CONTROL_REGISTER_NOTIFY
= 114,
385 CTDB_CONTROL_DEREGISTER_NOTIFY
= 115,
386 CTDB_CONTROL_TRANS2_ACTIVE
= 116, /* obsolete */
387 CTDB_CONTROL_GET_LOG
= 117, /* obsolete */
388 CTDB_CONTROL_CLEAR_LOG
= 118, /* obsolete */
389 CTDB_CONTROL_TRANS3_COMMIT
= 119,
390 CTDB_CONTROL_GET_DB_SEQNUM
= 120,
391 CTDB_CONTROL_DB_SET_HEALTHY
= 121,
392 CTDB_CONTROL_DB_GET_HEALTH
= 122,
393 CTDB_CONTROL_GET_PUBLIC_IP_INFO
= 123,
394 CTDB_CONTROL_GET_IFACES
= 124,
395 CTDB_CONTROL_SET_IFACE_LINK_STATE
= 125,
396 CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE
= 126,
397 CTDB_CONTROL_GET_STAT_HISTORY
= 127,
398 CTDB_CONTROL_SCHEDULE_FOR_DELETION
= 128,
399 CTDB_CONTROL_SET_DB_READONLY
= 129,
400 CTDB_CONTROL_CHECK_SRVIDS
= 130,
401 CTDB_CONTROL_TRAVERSE_START_EXT
= 131,
402 CTDB_CONTROL_GET_DB_STATISTICS
= 132,
403 CTDB_CONTROL_SET_DB_STICKY
= 133,
404 CTDB_CONTROL_RELOAD_PUBLIC_IPS
= 134,
405 CTDB_CONTROL_TRAVERSE_ALL_EXT
= 135,
406 CTDB_CONTROL_RECEIVE_RECORDS
= 136,
407 CTDB_CONTROL_IPREALLOCATED
= 137,
408 CTDB_CONTROL_GET_RUNSTATE
= 138,
409 CTDB_CONTROL_DB_DETACH
= 139,
410 CTDB_CONTROL_GET_NODES_FILE
= 140,
411 CTDB_CONTROL_DB_FREEZE
= 141,
412 CTDB_CONTROL_DB_THAW
= 142,
413 CTDB_CONTROL_DB_TRANSACTION_START
= 143,
414 CTDB_CONTROL_DB_TRANSACTION_COMMIT
= 144,
415 CTDB_CONTROL_DB_TRANSACTION_CANCEL
= 145,
421 struct ctdb_req_header
{
424 uint32_t ctdb_version
;
432 struct ctdb_req_call_old
{
433 struct ctdb_req_header hdr
;
439 uint32_t calldatalen
;
440 uint8_t data
[1]; /* key[] followed by calldata[] */
443 struct ctdb_reply_call_old
{
444 struct ctdb_req_header hdr
;
450 struct ctdb_reply_error_old
{
451 struct ctdb_req_header hdr
;
457 struct ctdb_req_dmaster_old
{
458 struct ctdb_req_header hdr
;
467 struct ctdb_reply_dmaster_old
{
468 struct ctdb_req_header hdr
;
476 struct ctdb_req_message_old
{
477 struct ctdb_req_header hdr
;
483 struct ctdb_req_control_old
{
484 struct ctdb_req_header hdr
;
489 #define CTDB_CTRL_FLAG_NOREPLY 1
490 #define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000
496 struct ctdb_reply_control_old
{
497 struct ctdb_req_header hdr
;
504 struct ctdb_req_keepalive_old
{
505 struct ctdb_req_header hdr
;
510 the extended header for records in the ltdb
512 struct ctdb_ltdb_header
{
516 #define CTDB_REC_FLAG_DEFAULT 0x00000000
517 #define CTDB_REC_FLAG_MIGRATED_WITH_DATA 0x00010000
518 #define CTDB_REC_FLAG_VACUUM_MIGRATED 0x00020000
519 #define CTDB_REC_FLAG_AUTOMATIC 0x00040000
520 #define CTDB_REC_RO_HAVE_DELEGATIONS 0x01000000
521 #define CTDB_REC_RO_HAVE_READONLY 0x02000000
522 #define CTDB_REC_RO_REVOKING_READONLY 0x04000000
523 #define CTDB_REC_RO_REVOKE_COMPLETE 0x08000000
524 #define CTDB_REC_RO_FLAGS (CTDB_REC_RO_HAVE_DELEGATIONS|\
525 CTDB_REC_RO_HAVE_READONLY|\
526 CTDB_REC_RO_REVOKING_READONLY|\
527 CTDB_REC_RO_REVOKE_COMPLETE)
533 definitions for different socket structures
537 struct sockaddr_in ip
;
538 struct sockaddr_in6 ip6
;
542 A structure describing a single node, its flags and its address
544 struct ctdb_node_and_flags
{
552 Structure used for a nodemap.
553 The nodemap is the structure containing a list of all nodes
554 known to the cluster and their associated flags.
556 struct ctdb_node_map_old
{
558 struct ctdb_node_and_flags nodes
[1];
564 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
565 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
566 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
567 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
568 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
569 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
570 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
571 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
576 #define CTDB_CAP_RECMASTER 0x00000001
577 #define CTDB_CAP_LMASTER 0x00000002
578 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
579 #define CTDB_CAP_LVS 0x00000004
580 /* This capability is set if NATGW is enabled */
581 #define CTDB_CAP_NATGW 0x00000008
586 #define CTDB_CAP_PARALLEL_RECOVERY 0x00010000
588 #define CTDB_CAP_FEATURES (CTDB_CAP_PARALLEL_RECOVERY)
590 #define CTDB_CAP_DEFAULT (CTDB_CAP_RECMASTER | \
594 struct ctdb_public_ip
{
599 struct ctdb_public_ip_list_old
{
601 struct ctdb_public_ip ips
[1];
605 struct ctdb_latency_counter
{
613 structure used to pass record data between the child and parent
615 struct ctdb_rec_data_old
{
623 struct ctdb_traverse_start
{
629 struct ctdb_traverse_start_ext
{
633 bool withemptyrecords
;
637 ctdb statistics information
639 #define MAX_COUNT_BUCKETS 16
640 #define MAX_HOT_KEYS 10
642 struct ctdb_statistics
{
643 uint32_t num_clients
;
646 uint32_t client_packets_sent
;
647 uint32_t client_packets_recv
;
648 uint32_t node_packets_sent
;
649 uint32_t node_packets_recv
;
650 uint32_t keepalive_packets_sent
;
651 uint32_t keepalive_packets_recv
;
655 uint32_t req_dmaster
;
656 uint32_t reply_dmaster
;
657 uint32_t reply_error
;
658 uint32_t req_message
;
659 uint32_t req_control
;
660 uint32_t reply_control
;
664 uint32_t req_message
;
665 uint32_t req_control
;
673 struct ctdb_latency_counter ctdbd
;
674 struct ctdb_latency_counter recd
;
678 uint32_t num_current
;
679 uint32_t num_pending
;
681 struct ctdb_latency_counter latency
;
682 uint32_t buckets
[MAX_COUNT_BUCKETS
];
684 uint32_t total_calls
;
685 uint32_t pending_calls
;
686 uint32_t childwrite_calls
;
687 uint32_t pending_childwrite_calls
;
688 uint32_t memory_used
;
689 uint32_t __last_counter
; /* hack for control_statistics_all */
690 uint32_t max_hop_count
;
691 uint32_t hop_count_bucket
[MAX_COUNT_BUCKETS
];
692 struct ctdb_latency_counter call_latency
;
693 struct ctdb_latency_counter childwrite_latency
;
694 uint32_t num_recoveries
;
695 struct timeval statistics_start_time
;
696 struct timeval statistics_current_time
;
697 uint32_t total_ro_delegations
;
698 uint32_t total_ro_revokes
;
702 * wire format for statistics history
704 struct ctdb_statistics_list_old
{
706 struct ctdb_statistics stats
[1];
712 struct ctdb_db_statistics_old
{
715 uint32_t num_current
;
716 uint32_t num_pending
;
718 struct ctdb_latency_counter latency
;
719 uint32_t buckets
[MAX_COUNT_BUCKETS
];
722 struct ctdb_latency_counter latency
;
724 uint32_t db_ro_delegations
;
725 uint32_t db_ro_revokes
;
726 uint32_t hop_count_bucket
[MAX_COUNT_BUCKETS
];
727 uint32_t num_hot_keys
;
731 } hot_keys
[MAX_HOT_KEYS
];
732 char hot_keys_wire
[1];
736 * wire format for interface list
739 #define CTDB_IFACE_SIZE IFNAMSIZ
741 #define CTDB_IFACE_SIZE 16
744 #define INVALID_GENERATION 1
745 /* table that contains the mapping between a hash value and lmaster
747 struct ctdb_vnn_map
{
754 a wire representation of the vnn map
756 struct ctdb_vnn_map_wire
{
762 struct ctdb_notify_data_old
{
765 uint8_t notify_data
[1];
768 /* table that contains a list of all dbids on a node
773 #define CTDB_DB_FLAGS_PERSISTENT 0x01
774 #define CTDB_DB_FLAGS_READONLY 0x02
775 #define CTDB_DB_FLAGS_STICKY 0x04
779 struct ctdb_dbid_map_old
{
781 struct ctdb_dbid dbs
[1];
784 #define CTDB_RECOVERY_NORMAL 0
785 #define CTDB_RECOVERY_ACTIVE 1
787 enum ctdb_client_id_type
{
793 struct ctdb_client_id
{
794 enum ctdb_client_id_type type
;
799 struct ctdb_client_id_list_old
{
801 struct ctdb_client_id server_ids
[1];
805 struct timeval current_time
;
806 struct timeval ctdbd_start_time
;
807 struct timeval last_recovery_started
;
808 struct timeval last_recovery_finished
;
811 struct ctdb_connection
{
816 struct ctdb_ban_state
{
821 struct ctdb_db_priority
{
827 * Structures to support SRVID requests and replies
829 struct ctdb_srvid_message
{
834 struct ctdb_disable_message
{
840 /* the wire representation for a tcp tickle array */
841 struct ctdb_tcp_wire_array
{
843 struct ctdb_connection connections
[1];
846 /* the list of tcp tickles used by get/set tcp tickle list */
847 struct ctdb_control_tcp_tickle_list
{
849 struct ctdb_tcp_wire_array tickles
;
852 /* all tunable variables go in here */
853 struct ctdb_tunable
{
854 uint32_t max_redirect_count
;
855 uint32_t seqnum_interval
; /* unit is ms */
856 uint32_t control_timeout
;
857 uint32_t traverse_timeout
;
858 uint32_t keepalive_interval
;
859 uint32_t keepalive_limit
;
860 uint32_t recover_timeout
;
861 uint32_t recover_interval
;
862 uint32_t election_timeout
;
863 uint32_t takeover_timeout
;
864 uint32_t monitor_interval
;
865 uint32_t tickle_update_interval
;
866 uint32_t script_timeout
;
867 uint32_t script_timeout_count
; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
868 uint32_t script_unhealthy_on_timeout
; /* obsolete */
869 uint32_t recovery_grace_period
;
870 uint32_t recovery_ban_period
;
871 uint32_t database_hash_size
;
872 uint32_t database_max_dead
;
873 uint32_t rerecovery_timeout
;
874 uint32_t enable_bans
;
875 uint32_t deterministic_public_ips
;
876 uint32_t reclock_ping_period
;
877 uint32_t no_ip_failback
;
878 uint32_t disable_ip_failover
;
879 uint32_t verbose_memory_names
;
880 uint32_t recd_ping_timeout
;
881 uint32_t recd_ping_failcount
;
882 uint32_t log_latency_ms
;
883 uint32_t reclock_latency_ms
;
884 uint32_t recovery_drop_all_ips
;
885 uint32_t verify_recovery_lock
;
886 uint32_t vacuum_interval
;
887 uint32_t vacuum_max_run_time
;
888 uint32_t repack_limit
;
889 uint32_t vacuum_limit
;
890 uint32_t max_queue_depth_drop_msg
;
891 uint32_t allow_unhealthy_db_read
;
892 uint32_t stat_history_interval
;
893 uint32_t deferred_attach_timeout
;
894 uint32_t vacuum_fast_path_count
;
895 uint32_t lcp2_public_ip_assignment
;
896 uint32_t allow_client_db_attach
;
897 uint32_t recover_pdb_by_seqnum
;
898 uint32_t deferred_rebalance_on_node_add
;
899 uint32_t fetch_collapse
;
900 uint32_t hopcount_make_sticky
;
901 uint32_t sticky_duration
;
902 uint32_t sticky_pindown
;
903 uint32_t no_ip_takeover
;
904 uint32_t db_record_count_warn
;
905 uint32_t db_record_size_warn
;
906 uint32_t db_size_warn
;
907 uint32_t pulldb_preallocation_size
;
908 uint32_t no_ip_host_on_all_disabled
;
909 uint32_t samba3_hack
;
910 uint32_t mutex_enabled
;
911 uint32_t lock_processes_per_db
;
915 CTDB_RUNSTATE_UNKNOWN
,
918 CTDB_RUNSTATE_FIRST_RECOVERY
,
919 CTDB_RUNSTATE_STARTUP
,
920 CTDB_RUNSTATE_RUNNING
,
921 CTDB_RUNSTATE_SHUTDOWN
,
924 #define CTDB_MONITORING_ACTIVE 0
925 #define CTDB_MONITORING_DISABLED 1
928 struct holding a ctdb_sock_addr and an interface name,
929 used to add/remove public addresses
931 struct ctdb_control_ip_iface
{
939 struct holding a ctdb_sock_addr and an interface name,
940 used for send_gratious_arp
942 struct ctdb_control_gratious_arp
{
950 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
952 struct ctdb_node_flag_change
{
958 #define CTDB_LMASTER_ANY 0xffffffff
960 /* structure used for pulldb control */
961 struct ctdb_control_pulldb
{
966 /* structure used for sending lists of records */
967 struct ctdb_marshall_buffer
{
974 structure for setting a tunable
976 struct ctdb_control_set_tunable
{
983 structure for getting a tunable
985 struct ctdb_control_get_tunable
{
991 structure for listing tunables
993 struct ctdb_control_list_tunable
{
995 /* returns a : separated list of tunable names */
1000 struct ctdb_control_transdb
{
1002 uint32_t transaction_id
;
1005 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1007 struct ctdb_control_iface_info
{
1008 char name
[CTDB_IFACE_SIZE
+2];
1009 uint16_t link_state
;
1010 uint32_t references
;
1013 struct ctdb_control_public_ip_info
{
1014 struct ctdb_public_ip ip
;
1015 uint32_t active_idx
;
1017 struct ctdb_control_iface_info ifaces
[1];
1020 struct ctdb_control_get_ifaces
{
1022 struct ctdb_control_iface_info ifaces
[1];
1026 * structure to pass to a schedule_for_deletion_control
1028 struct ctdb_control_schedule_for_deletion
{
1030 struct ctdb_ltdb_header hdr
;
1032 uint8_t key
[1]; /* key[] */